Protecting a Solo Law Firm: Malpractice Insurance and Client Contracts

Claims-Made vs Occurrence: The Distinction That Determines Whether You're Actually Covered

This is the single most consequential concept in attorney malpractice insurance, and getting it wrong leaves you exposed even with an active policy. A claims-made policy only covers a claim if it's made while the policy is active and the underlying act occurred after the policy's retroactive date — if you let the policy lapse and a claim arrives later for work done while it was active, you're not covered unless you purchased an extended reporting period (a 'tail'). An occurrence policy covers acts that happened while the policy was in force regardless of when the claim is later made, but occurrence policies are less common and typically more expensive in the legal malpractice market, which is dominated by claims-made products. Know which type you're buying and what your tail options look like before you need either.

Setting the Retroactive Date Correctly

The retroactive date on a claims-made policy is the earliest date from which prior acts are covered, and setting it wrong is a common and costly mistake. If you're a brand-new solo who has never practiced privately before, set it to your first day of solo practice — there's no prior work to cover. If you previously worked at a firm before going solo, think carefully about whether that firm's malpractice tail covers your prior work there or whether you need continuity coverage; this is a conversation worth having directly with your insurance broker or carrier rather than assuming continuity is automatic.

Choosing a Carrier and Coverage Limits That Fit Your Practice Area

ALPS, the largest attorney-owned malpractice carrier, covers solo attorneys in all fifty states and specializes exclusively in legal malpractice, which means its underwriting understands solo-practice risk specifically. USI Affinity places coverage through multiple carriers (including Chubb, CNA, Travelers, and Hanover) and often has access to bar-association member discount programs, which is worth checking with your specific state or local bar. Coverage limits should scale with your practice area's risk profile — lower-risk transactional and advisory practice areas generally need less coverage than higher-risk litigation practice areas — but get an actual quote based on your specific practice area rather than picking a limit from a generic guideline, since risk-based pricing varies meaningfully by carrier and practice area.

Engagement Letters as Your First Line of Protection

A well-drafted engagement letter prevents more disputes than any insurance policy resolves after the fact, because it establishes exactly what you agreed to do, for what fee, and under what terms before a disagreement has a chance to form. At minimum, your engagement letter should define the scope of representation precisely enough that both you and the client can tell what's included and what isn't, state your fee structure and, for contingency fees, the state-required disclosures, address confidentiality and how you'll communicate, and specify how the relationship can be terminated by either party. Vague scope language is the single most common source of both fee disputes and malpractice claims — 'I thought you were handling my entire divorce' after you scoped only the initial filing is a predictable and avoidable dispute.

Confidentiality, Conflicts, and Documentation as Ongoing Protection

Protection doesn't end at the engagement letter — it continues through how you handle client confidences and conflicts for the life of the matter. Run a conflict check before every new matter, not just when something feels potentially conflicting, and document that you ran it. Keep client communications and file notes contemporaneous rather than reconstructed later, since a well-documented file is your best evidence if a client's recollection of what you advised differs from what actually happened. A practice-management platform with built-in conflict checking and client communication logging removes some of the manual burden here, but the discipline of actually using it consistently is what provides the protection.

Common Protection Gaps New Solos Leave Open

The most common gap is delaying malpractice coverage past your first client engagement, treating it as a task for 'once things are running' rather than a prerequisite. The second is an engagement letter with vague or missing scope language, because it feels awkward to spell out limitations to a new client — but that awkwardness is far cheaper than the dispute an unscoped engagement can create later. The third is skipping conflict checks for matters that feel obviously unrelated, which is exactly the category where an actual conflict is most likely to be missed, because nobody looked carefully. A fourth is treating coverage limits as a one-time decision — as your practice area mix or caseload size shifts, revisit whether your original limits still match your actual risk rather than assuming your first-year policy fits indefinitely.

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